Stove



P. FOLTYN sTovE June 1 1926. 1,586,548

Filed Nov. so, 1925 Firm/oz my (inventor Patented June 1, 192 6.

UNIT-EDI s'rArEs PETER roman new YORK, 1 I. Y.

s'rovn.

' Application med November so, 1925. semi No. 72,186.; i

This; invention relates to heaters "for rooms, compartments, tents, andthe like, the object'being to construct a heater to burn sawdust,shavings, and other waste r; combustible matter, which requires no at-'.tentionafter a' fire is started, and which vey them to a suitable outletto beI1c'on-' nected to a fine or chimney.

in the provision of core bodieswhich'are arranged before the sawdust isintroduced into the inner or combustion cylinder to form draft channelsor passages for the free .to enhancethe operation of the heaterandincite combustion.

I have illustrated a preferred embodiment of myjinvention in theaccompanying drawings in which v y Fig. 1 is a central sectionalelevation of my improved heater showing thecore bodies in position toform; air channels after the sawdust has been tamped and said coresreinoved; a a H I V Fig. 2 is a partial section of the heater with thecores removed and the sawdust charge ready for igniting.

3.3 of Fig. 2.

'Fig. 1 is a fragmentary vertical cross section on the line t-et of Fig.2. V V Fig. 5 is a detail perspective showing a channeled molded sawdustblock which may be used as fuel for my heater.

Referring to the drawings, 10 and 11 are the outer and inner spacedcylinders or drums forming the body of my improved heater, the latterbeing removable, and providing a circumferentialrspace or smoke chamber12 toreceive and direct the products of combustion to, the flue or'chi'mney13.

The outer cylinder or drum 10 is formed 5 with a bottom 14, shaped toprovide a cross sectional semi-circular trough 15,.an'd the in nercylinder or drum 11 is formed with an Dutwardly directed short crosssectional A further feature of the invention resides circulation of theair through the sawdust liquor) Fig. 3 is a horizontal 860131011 on theline semicircular extension 16 to register with the outer end portion oftrough 15, and tog ether form1a short air tube 17 across the Ismokecliamber 12.; This tube is normally:

open but maybe partially closedwhen the heateris operating toregulatethe inflow of airv by afdamper 01' valve plate 18,-slidable.

in guides, 19,. which frictionally hold the va-lve'plate on anyelevation.

The heater may be closed at the top when I in operation by a cover 20resting on the outer cylinder or drum 10, somewhat above the upper endof the inner cylinder or shell 11 to provide free passage for the saidprodor chimney.

The heater may be provided with feet or rests'21 to space it from thefloor.

To properly place the removable innerv cylinder 11 so that the sectionsof the air nets of combustion on their way to the flue with radiallugs122, one ormore engaging r sockets 23. on the bottom 14 of the outerone, to preventa relative turning movement of the cylinders.

, In Fig. 5 of the drawing, I have shown a cast or molded sawdust diskor block25 having air channels for passages 26 and disks of thischaracter may be used as fuel in my heater in lieu of loose sawdust. Thedisks may be prepared by using the Waste liquorof paper pulp manufacture(sulphite dust.

WVhen recharging the heater prior to starting a newfire, I pass a core27 through starcheto, as a binder for the saw- I the air tube 17 and,into and alongthe q trough 15 tojabout the center of the cylinder ll',after which I place anothervertically and centrally arranged core 28 inthe said cylinder. Thesawdust isthen introduced and packed or tampedaround the core 28 until the combustion chamber 29 is filled, afterwhich the cores are removed,

leaving air channels 30 and 31,-and a match or tor-ch is then applied tothe charge through air tube 17 after the cover 20 is said cylindervmaybe lifted out of'the outside cylinder 10 and the. possible ashesvremoved. In this case air shaft 17 is placed entirely above the bottomof cylinder 11.

What I claim as new, is 1. A heater comprising spaced cylinders,

one having a bottom formed with a crosssectional, semi-circular trough,the other being open ended and provided with a crossscctionalsemi-circular extension adapted to register with the trough and togetherform an air inlet tube spanning the space between said cylinders,thereby forming an air passage to the firing charge.

2. In a heater, an outer cylinder provided with a bottom having across-sectional, semi-circular trough, an inner cylinder having spacinglugs and a crosssectional, semi-circular extension to register with saidtrough to form an air tube spanning the space between said cylindersthereby forming an air passage to the firing charge, said outer cylinderhaving sockets to receive said spacing lugs to lock the parts againstrelative movement.

3. In a heater, an outer drum having a removable cover, an outlet flueand a bottom formed with a cross-sectional semi-circular trough, aninner drum having semicircular extension registering with said trough tocollectively form an air inlet tube spanning the space between the drumsthereby forming an air passage to the firing charge, and a valve tocontrol the passage of air into said tube, as described.

Signed at New York city in the county and State of New York this 18thday of November A. D. 1925.

PETER FOLTYN.

